What are the client alternatives for Google Drive?

Question

Google Drive

Requirements:
The ability to replicate files from a computer to the cloud when these files change, and not according to a schedule
Support for OAuth 2
Adequate speed
Preferably open source
With guy

Answer 1

https://cyberduck.io/
and rummage around there, there is something with open source

Answer 2

https://github.com/nurdtechie98/drive-cli